Function Error; External Device Recognition Error - LG 70LB650V Service Manual

Standard Repair Process
Error
LCD TV
symptom
Check
input
signal
external device/cable
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Only for training and service purposes
D. Function error

External device recognition error

Check technical
Y
Signal information
input?
- Fix information
- S/W Version
N
Check and fix
Established
Revised date
External Input and
N
Technical
Component
information?
Recognition error
Y
RGB,HDMI/
DVI, Optical
Fix in
Recognition error
accordance
with technical
information
12
2014.01.20
date
Replace Main B/D
Replace Main B/D
11/13
LGE Internal Use Only